Halloween can be a tricky thing for Christians to wade through. Look at the origins and make the choice for your self!
Even though [Arakiel's] virtuous displays are few and far between, they occur enough to make Lucifer wonder whether his brother has gone soft. Lucifer only intended to start a war, not a silly romance between an angel and a demon. He orders Bethany to be burned at the stake in front of an audience of demons and lost souls, but not even hellfire can destroy the young angel.